Valve device for acetylene-lamps and the like



4G. R. SHANKLIN. vALvE QEvlcE FoR ACETYLENE LAMP AND THE LIKE.

APPLICATIDN ,FILED JUNE l0,19|8 l Patented N ov. 23, 1920.

UITE

"PATE Arsv VALVE DEVICE FOR ACETYLENE-LAMPS AND THE LIKE. I

vApplication l'ey June, 1Q, 1918. Serial' No. 239,171.

To all fwiomz't may concern.' n

Be itknown that I, GEORGE R. SHANKLIN, a citizen of thegUnited States,residing at Springfielchin the'county of Sangainon and State ofIllinois, have invented certainnew and useful Improvements in ValveDevices for Acetylene-Lamps and the like, of which the following is adescription'.

My invention belongs to that general class of' devices provided withvalves which are particularly designed'to control therflew or feed ofthe fluid tothecaleium carbid, or its equivalent. tion of av simple,durable and efectivedev-ice for the purpose described that isv notlikely to clog up and that can be readily freed from any spent carbid orother matter that may adhere thereto. To this end, my in.- ventionconsists in the novel construction, arrangement and combination'of partsherein shown and described and more particularly pointed out in theclaims. y

In the drawings, wherein like reference characters `indicate like orcorresponding parts,

V,Figure 1 is a central vertical section" through anV acetylene .lamp ofthe cla-ssy known as miners. lamps;

F ig. 2 is la similar section of the lower portion of the iiuid tube andvalve, enlarged; y

' Fig. 3 is a transverse section on line 5 -5 of Fig. 2,;y

Fig.y l is a similar section `on line 6-6 of Fio. 2; Fig. 5 isa 2,.showing a modification f Fig. 6 is av transverse section on .line 3 -3of Fig. 5. f v

In the drawings, 1 represents the water chamber and 2y the 'carbidchamber of a'lamp of the kind described, the two beingcon-Y nected at 3by the usual screw threaded construction.' 4 is filling opening in thewater chamber, and 5 is a cap therefor. The gas generated in the chamber2 is conducted to and escapes through' the tube 6, which when in use isprovided with Vthe usual gas tip, and a reflector if desired. 4

7 is the-water tube carried by the water chamber and extending downwardtherethrough and well into the carbid chamber,

so as to be positioned in the carbid when in f use. The lower end of thewater tube 7 is formed with a valve seat 8. Rotatably secured to thelower end of the water tube 7 is It hasfor itsl objectthe'producsectional view similarrto Fig..

if @me f i Specification of Letters Patent. Patntd'NoV.' 23, i Y

the sleeve 9, which,vin the forni. shown, is at its upper' end bentinward. as atl() to ,engage a,v circumferential groove or indentation 11formedin theftube 7 for thatrpur-pose..

12. is a rotatable valve stem carryingfupong its lower end a valve 13cop'erating with i the valve seat .8.' The sleevev9' extends acape-outwardly.- Thevalve alsoispreferably oi' such a size or shape ascomparedto. the sleeve 9, to permit the Huid to'l escape between the twodownwardly. 1 l I In that embodimentof the in venti on illustrated inFigs.. 1,2, 3 andtythe valve vis provided with a downwardlyl dependingeX-" "tension 15, which, in the preferred form,

is substantially V'square or other regular shape, loosely fittingtheinterior yof' the sleeve so that-:as the sleeve andthe valve arerotated in `relation toone' another, the f Y clear the lower end of thetube ,oif'ranyrin-V said extension 15 will serve to grindofla-ndcrust-ations thereupon. This depending exa- 1 tension 15 may,.in someinstances, beY dis-` pensed with, with very'satisfactory results, and inthat embodiment of .the invention illustrated in'Figs. 5 and 6, thelvalvev 13 is del a voidof such `eXtension. y y -k The upper end of thestem 12 is secured to' a thimble 16 which .is screw threaded in theupper end of the .tube` 7 ,and theQstem is bent downward oroutward as at17so-as to afford convenient means forrota'ting the .,f

valve stem and thi-inble. v

y Thefoperation of. the devi'ceis apparent. The rotationV 0I" the valvewill. 'serve to crush and clear .the device of any 1 incrustationsforming at the valve seat 8and the sleeve y9V may readily be vturned "bythe thunib and off4 the vdevice from 'such incrustations. In the form`illustrated-lin. Figs. ,1, `2,'3jand 14:5,

the extension 15 serves a similar purposein l clearing-the'deviceof1anyaccumulation. ofV i incrustations without in any way stirring or nagitating the carbid in the carbid chamber.'

sleeve mounted Vupon* the 'lower endof theA the iena de'seribeava." v

linger of theoperator to clear-the lower end Y and desire to' secure incombination with a rotatable valve stem Acontrol thev'riow ol fluidthrough Y the said sleeve-being so connected vtube that it' is withinthe tube provided upon its lower end Vwith a valve arranged to cooperatewith the seat on the lower end ci the tube and means for permitting theescape of tluid between the two, the said sleeve being ofv a length toproject below and constitute a surrounding casing tor the valve at alltimes.

2. In a device oi' the kind described, a de pending fluid tube providedwith a valve seat upon its lower end, and with a sleeve mounted upon thelower end thereo'f and ex tending below the valve seat, said sleevebeing provided with slotted openings in line with the valve seat, incombination with a rotatable valve stein positioned withintlie tubean'dcarryiiig upon its l Ver end a valve adapted to coperate witn thevalve seat to the tube, with the tree Jlor relative rotatable movementbut fixed against longitudinal movement, substantially as described.

8. In ad vice ot the liind described, a. depending fluid tube providedwith a valve `seat upon its lower end, a sleeve mounted upon the lowerend of the tube for free rela- .tive rotatable movement and fixedagainst longitudinal movement extending below the valve said sleeve beinprovideril ,Y 1. .I

with slottedopenings in line with the vaivo seat, in combinationwith arotatable vals/*e stem positioned within the tube carry ing upon its enda valve arranged to cooperate with the valve seat 'to control 'theescape of {iuid trom the-tube, said valve `being provided with adownwarf extending part adapted -to clear the iieev end the sleeve ofanyrto-reign matter accumulat- Ving therein.

4. In a device or" the kind described, a depending fluid tube providedwith a valve seat upon its lower end and a rotatable sleeve fixedagainst longitudinal movement mounted upon the lower end of the tube andextending below the seat, in combination with a rotatable valve stemwithin the tube provided upon its lower end with a valve arranged tocoperate with the valve seat and spaced from the sleeve to permit theescape of fluid between the two, said sleeve being adapted at all timesto project below the Valve parts, substantially as and for the purposedescribed. l

5. In avalve construction for acetylenev lamps and the like, thecombination of a depending fluid tube provided at its lower end with avalve seat, a valve stem loosely projecting through the tube andterminating at its lower end in a valve to engage the said seat, and asleeve loosely positioned on the tube and projecting below the valveseat as well as the valv parts, said sleeve having an opening adjacentthe valve seat, and a direct inteilocl-iing engagement between the tubeVand sleeve permitting relative rotatable movement between these parts.j

6. A device of the liind 1described comprising a container, a fluid tubedepending trom the top thereof and provided with a valve seat at itslower end, 'an adjustable valve st in projecting through the tube andterminating at its lower end in a valve of substantially the diameter etthe tube 'and relative rotation of the sleeve and to prevent relativelongitudinal movement, said sleeve being of a length to project belowand constitute a surrounding housing t'or the valve, and said valvebeing tree 'from projecting parts extending below said sleeve.

7. Av device oi the character described comprising a container, a fluidtube depending 'trom the top oi"- the container, said tube havingadjacent its lower end a 'circumierential guideway, a valve stemprojecting through the tube and terminating at its lower end in a valveto engage the lower end of said tube, a sleeve loosely fitted over thelower end olV said tube and having a part to engage said guideway,whereby to permit of n W'itnesses:

E. M. SHANKLIN, E. N. CALDWELL.

GEORGE n, sHAnKLiN.y f

